package org.gg.boom.kernel.config;

import jakarta.annotation.Resource;
import org.gg.boom.kernel.config.filter.JwtAuthenticationTokenFilter;
import org.gg.boom.kernel.config.handle.AuthenticationEntryPointImpl;
import org.gg.boom.kernel.config.handle.LogoutSuccessHandlerImpl;
import org.gg.boom.kernel.config.properties.PermitAllUrlProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;

import java.util.List;

/**
 * spring security配置
 */
@EnableWebSecurity
@Configuration
public class SecurityConfig {
    /**
     * 自定义用户认证逻辑
     */
    @Resource
    private UserDetailsService userDetailsService;

    /**
     * 认证失败处理类
     */
    @Resource
    private AuthenticationEntryPointImpl unauthorizedHandler;

    /**
     * 退出处理类
     */
    @Resource
    private LogoutSuccessHandlerImpl logoutSuccessHandler;

    /**
     * token认证过滤器
     */
    @Resource
    private JwtAuthenticationTokenFilter authenticationTokenFilter;

    /**
     * 跨域过滤器
     */
    @Resource
    private CorsFilter corsFilter;

    /**
     * 允许匿名访问的地址
     */
    @Resource
    private PermitAllUrlProperties permitAllUrl;

    /**
     * 解决 无法直接注入 AuthenticationManager
     *
     * @return
     * @throws Exception
     */
    @Bean
    public AuthenticationManager authenticationManagerBean(AuthenticationConfiguration configuration) throws Exception {
        return configuration.getAuthenticationManager();
    }

    @Bean
    public AuthenticationProvider authenticationProvider() {
        DaoAuthenticationProvider provider = new DaoAuthenticationProvider();
        provider.setUserDetailsService(userDetailsService);
        provider.setPasswordEncoder(bCryptPasswordEncoder());
        return provider;
    }

    /**
     * anyRequest          |   匹配所有请求路径
     * access              |   SpringEl表达式结果为true时可以访问
     * anonymous           |   匿名可以访问
     * denyAll             |   用户不能访问
     * fullyAuthenticated  |   用户完全认证可以访问（非remember-me下自动登录）
     * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问
     * hasAnyRole          |   如果有参数，参数表示角色，则其中任何一个角色可以访问
     * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问
     * hasIpAddress        |   如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问
     * hasRole             |   如果有参数，参数表示角色，则其角色可以访问
     * permitAll           |   用户可以任意访问
     * rememberMe          |   允许通过remember-me登录的用户访问
     * authenticated       |   用户登录后可访问
     */
    @Bean
    public SecurityFilterChain configure(HttpSecurity httpSecurity) throws Exception {
        List<String> allowUrls = permitAllUrl.getUrls();
        httpSecurity
                // 认证提供者
                .authenticationProvider(authenticationProvider())
                .csrf(csrfConfig -> {
                    // CSRF禁用，因为不使用session
                    csrfConfig.disable();
                })
                .authorizeHttpRequests(authRequestConfig -> {
                    // 允许匿名访问的url
                    authRequestConfig
                            .requestMatchers(allowUrls.toArray(new String[0]))
                            .permitAll();
                    // 对于登录login 注册register 验证码captchaImage 允许匿名访问
                    authRequestConfig.requestMatchers("/login", "/register", "/captchaImage", "/api/hcps/report-data").permitAll();
                    // 静态资源，可匿名访问
                    authRequestConfig.requestMatchers(HttpMethod.GET, "/", "/*.html", "/*/*.html", "/*/*.css", "/*/*.js", "/profile/**").permitAll();
                    // 公共资源
                    authRequestConfig.requestMatchers("/swagger-ui.html", "/swagger-resources/**", "/webjars/**", "/*/api-docs", "/druid/**").permitAll();
                    // 其他所有请求都需要认证
                    authRequestConfig.anyRequest().authenticated();
                }).headers(headersConfig -> {
                    // 禁用HTTP响应标头
                    headersConfig.cacheControl(cacheCtlConfig -> {
                        cacheCtlConfig.disable();
                    });

                    headersConfig.frameOptions(frameOptsConfig -> {
                        frameOptsConfig.disable();
                    });
                }).exceptionHandling(exceptionHandlingConfig -> {
                    // 认证失败处理类
                    exceptionHandlingConfig.authenticationEntryPoint(unauthorizedHandler);
                }).sessionManagement(sessionManagementConfig -> {
                    // 基于token，所以不需要session
                    sessionManagementConfig.sessionCreationPolicy(SessionCreationPolicy.STATELESS);
                }).logout(logoutConfig -> {
                    logoutConfig.logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler);
                })
                // 添加JWT filter
                .addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class)
                // 添加CORS filter
                .addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class)
                .addFilterBefore(corsFilter, LogoutFilter.class);
        return httpSecurity.build();
    }

    /**
     * 强散列哈希加密实现
     */
    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }

    /**
     * 身份认证接口
     */
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder());
    }
}
